NQO1 and tuberculosis: Of the cumulative total of more than 5500 plant samples (representing more than 2000 species) that were collected in the two countries, 1901 have been evaluated for anti-HIV, 704 for cancer chemoprevention (i.e., quinone reductase, Cox-1, Cox-2, aromatase, luciferase-ARE and luciferase NF-κB), 2786 for cytotoxicity, 1848 for HL-60 differentiation, 2268 for antimalarial, and 2066 for anti-TB (tuberculosis) activities.